Union Carbide

Union Carbide Corporation
Company type	Subsidiary
Industry	Chemical manufacturing
Predecessor	Union Carbide and Carbon Corporation
Founded	1898
Fate	Acquired by Dow Chemical Company in 2001
Headquarters	Seadrift, Texas, United States
Area served	Worldwide
Key people	Alec Flamm (Chairman from 1986), Warren M. Anderson (former CEO)
Products	Chemicals and polymers used in paints, coatings, packaging, wire and cable, household goods, personal care products, pharmaceuticals, automotive components, textiles, agriculture, oil and gas sectors
Owner	Dow Chemical Company
Parent	Dow Chemical Company

Union Carbide Corporation (UCC) is a chemical manufacturing firm based in Seadrift, Texas, United States. Since 2001, it has functioned as a fully owned subsidiary under the Dow Chemical Company umbrella. The company specializes in producing chemicals and polymers that serve as intermediates across a variety of sectors such as paints and coatings, packaging materials, wire and cable industries, household goods, personal care products, pharmaceuticals, automotive components, textiles, agriculture, and the oil and gas field. Union Carbide was once included in the Dow Jones Industrial Average index.

Originating in 1917 as the Union Carbide and Carbon Corporation following a merger with the National Carbon Company, Union Carbide developed an efficient method to synthesize ethylene from natural gas liquids including ethane and propane, significantly advancing the contemporary petrochemical industry. Prior to its Dow acquisition, Union Carbide divested several consumer product lines such as Eveready and Energizer batteries, Glad brand bags and wraps, Simoniz car wax products, and Prestone antifreeze. Additional divestitures included electronic chemicals, polyurethane intermediates, industrial gases (notably Linde), and carbon-based products.

History

The company known as Union Carbide and Carbon Corporation was formed on November 1, 1917, through the consolidation of the Union Carbide Company (established 1898), National Carbon Company (1886), Linde Air Products Company—a producer of liquid oxygen in Buffalo—and Prest-O-Lite, a calcium carbide manufacturer located in Indianapolis. In 1920, it initiated a chemicals division dedicated to manufacturing ethylene glycol for use in automotive antifreeze. Growth continued through acquisitions of related chemical manufacturers such as the Bakelite Corporation in 1939. The firm adopted the name "Union Carbide Corporation" in 1957 and managed Oak Ridge National Laboratory from 1947 until 1984.

Throughout the Cold War era, Union Carbide concentrated on research and development of rocket propulsion systems for aerospace and guided missile technology. Its expertise encompassed chemicals, plastics, solid rocket motors, and storable liquid fuels. These activities were centered at its Technical Center in South Charleston, West Virginia, within the Aerospace Materials Department under the Carbon Products Division.

In 1986, following an attempted hostile takeover, Union Carbide sold its industrial and consumer zinc chloride battery operations—including Ucar-branded batteries along with Eveready and Energizer alkaline batteries—to Ralston Purina.

After the Bhopal tragedy, Union Carbide encountered several takeover bids. To manage financial liabilities, it sold off major brands including Glad Trashbags and Eveready Batteries. Dow Chemical announced its intention to acquire Union Carbide for $8.89 billion in stock in 1999; this transaction finalized in 2001 with a total valuation of $11.6 billion. On February 6, 2001, Union Carbide became a wholly owned subsidiary of Dow Chemical.

Hawks Nest Tunnel disaster

The Hawks Nest Tunnel catastrophe (1927–1932) occurred during a Union Carbide tunneling project in West Virginia where workers were exposed to silica dust without adequate protective gear. This exposure led to widespread cases of silicosis among laborers and resulted in numerous deaths. Reported fatality figures vary: a commemorative plaque cites 109 deaths; a congressional hearing recorded 476 fatalities; while epidemiologist Martin Cherniack estimated as many as 764 deaths—making it one of the deadliest industrial disasters in American history.

Asbestos extraction and the 'Calidria' fiber line

During the early 1960s, Union Carbide commenced chrysotile asbestos extraction operations near King City and New Idria in California. These fibers were sold under the "Calidria" label, primarily for incorporation into joint compounds and drywall materials. In the 1980s, Union Carbide transferred ownership of the mine to its employees, forming KCAC ("King City Asbestos Mine"), which functioned for a short period before shutting down.

The 1984 Bhopal catastrophe

Union Carbide India Limited (UCIL), in which Union Carbide held a controlling stake of 50.9%, managed a pesticide manufacturing facility in Bhopal that produced carbaryl insecticide utilizing methyl isocyanate (MIC). Initially reliant on MIC imports, UCIL established an on-site MIC production unit in 1979, despite contravening the 1975 Bhopal Development Plan by situating the plant close to a densely inhabited region.

On December 3, 1984, a leak released MIC and other toxic chemicals, exposing over half a million individuals. The Madhya Pradesh government reported approximately 16,000 fatalities and estimated around 40,000 people suffered permanent disabilities, marking it as the deadliest industrial accident worldwide. Victims sought damages totaling $10 billion, while the Indian government pursued $3.3 billion in claims. Union Carbide initially proposed compensation between $300 million and $350 million and ultimately agreed to a $470 million settlement in 1989.

This settlement translated to a cost of 43 cents per share for Union Carbide—a figure that sparked controversy given the company's record earnings per share of $4.88 that year. In the aftermath, Union Carbide divested its interests in UCIL. The company has consistently maintained that sabotage caused the leak. The site remains contaminated to this day.

Warren Anderson, who served as CEO at the time of the disaster, evaded homicide charges in India due to denied extradition requests. He passed away in 2014. In 2010, seven Union Carbide employees were found guilty of negligence and fined $2,000 each.

1985 chemical release in West Virginia

In 1985, a malfunctioning valve at Union Carbide's facility in Institute, West Virginia resulted in a release of aldicarb oxime, an essential component of the pesticide Temik. Six workers sustained injuries from this event, and nearly 200 local residents sought medical care for respiratory and dermatological symptoms. Union Carbide attributed the incident to pressure accumulation within a storage tank holding approximately 500 pounds of the chemical and asserted that there was no risk posed to the surrounding community.

Union Carbide's operations in Australia

Union Carbide entered Australia's market in 1957 by acquiring Timbrol Ltd’s manufacturing plant located in Rhodes, New South Wales, near Sydney Harbour. This facility produced phenol alongside insecticides including chlorobenzene, chlorophenol, and DDT, as well as herbicides such as 2,4-D and 2,4,5-T. Production of herbicides 2,4-D and 2,4,5-T persisted until 1976, whereas manufacturing of chlorobenzene, chlorophenol, and DDT ceased by 1983. Additionally, Union Carbide began producing bisphenol A in 1960 and phenol formaldehyde resins starting in 1964.

The company also reclaimed adjacent marshlands by depositing spent lime and ash materials until 1970 with authorization from the Maritime Services Board. Operations in Australia were discontinued by Union Carbide in 1985. Following directives from the New South Wales Pollution Control Commission issued in 1987, Union Carbide invested $30 million between 1988 and 1993 to remediate polluted soil through excavation and encapsulation methods.

Subsequent remediation projects received approval in 2004 targeting both the former Union Carbide site and nearby Homebush Bay areas. Approximately 900,000 tons of soil from this site were removed alongside about 190,000 tons from the adjacent Allied Feeds location and roughly 50,000 tons of sediment from Homebush Bay itself. Cleanup at Allied Feeds concluded by August 2009; sediment removal at Homebush Bay was completed by August 2010; and remediation efforts at the former Union Carbide site ended in March 2011. The total expenditure for these environmental restoration activities amounted to $135 million, underscoring Union Carbide’s substantial commitment to addressing its ecological responsibilities.

New York Headquarters Building

Located at 270 Park Avenue in New York City, the original Union Carbide headquarters was a 52-story office tower exemplifying modernist architecture, designed by Skidmore, Owings & Merrill and completed in 1960. In 1983, the company relocated its main offices to Danbury, Connecticut, where it established the Union Carbide Corporate Center. Following this move, 270 Park Avenue became the central office for JPMorgan Chase. The initial structure was eventually dismantled to allow construction of a new skyscraper aimed at centralizing JPMorgan Chase's operations. Notably, the Union Carbide Building held the distinction of being the tallest building ever voluntarily demolished worldwide, standing approximately .

Presidents

George O. Knapp, 1917–1925
Jesse J. Ricks, 1925–1941
Benjamin O'Shea, 1941–1944
Fred H. Haggerson, 1944–1952
Morse G. Dial, 1952–1958
Howard S. Bunn, 1958–1960
Birny Mason Jr., 1960–1966
Kenneth Rush, 1966–1969
F. Perry Wilson, 1969–1971
William S. Sneath, 1971–1976
Warren M. Anderson, 1976–1982
Alec Flamm, from 1982 onward

Chairmen of the Board

Fred H. Haggerson, 1951–1958
Morse G. Dial, 1958–1966
Birny Mason Jr., 1966–1971
F. Perry Wilson, 1971–1976
William S. Sneath, 1976–1982
Warren M. Anderson, 1982–1986
Robert D. Kennedy, beginning in 1986

External links